| 摘要 |
A user is presented with handle of a captive but freely moveable wand, the handle useable to move an attached viewfinder over a clear front window of a front component to selectively reveal parts of printed matter on a hidden back component as apparently part of semi-transparently printed matter on the clear front window. Inside, a concealed component tethered to the wand travels between the semi-transparently printed matter and the printed matter on the hidden back component. The tethered concealed component has an opening that lies directly below and matches an opening in the viewfinder in size so that, with movement, it can selectively show (a) both the printed matter on the clear front window superimposed over the selectively revealed parts of the printed matter on the back component in the viewfinder and (b) solely the semi-transparently printed matter on the clear front window outside the viewfinder. |
